HI Marek On 3/31/20 2:48 AM, Marek Vasut wrote: > The core and vdd PMIC buck regulators were misconfigured, which caused > instability of the board and malfunction of high-speed interfaces, like > the RGMII. Configure the PMIC correctly to repair these problems. Also, > model the missing Enpirion EP53A8LQI on the DHCOR SoM as a fixed regulator. > > Signed-off-by: Marek Vasut <[email protected]> > Cc: Patrick Delaunay <[email protected]> > Cc: Patrice Chotard <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]> Thanks > --- > V2: - Model the Enpirion EP53A8LQI on the DHCOR SoM as a fixed regulator > - Adjust the PMIC voltages further > --- > arch/arm/dts/stm32mp157a-avenger96.dts | 20 ++++++++++++++++---- > 1 file changed, 16 insertions(+), 4 deletions(-) > > diff --git a/arch/arm/dts/stm32mp157a-avenger96.dts > b/arch/arm/dts/stm32mp157a-avenger96.dts > index 7a4b6e6a2c..4fa20bc31d 100644 > --- a/arch/arm/dts/stm32mp157a-avenger96.dts > +++ b/arch/arm/dts/stm32mp157a-avenger96.dts > @@ -91,6 +91,17 @@ > states = <1800000 0x1>, > <2900000 0x0>; > }; > + > + /* Enpirion EP3A8LQI U2 on the DHCOR */ > + vdd_io: regulator-buck-io { > + compatible = "regulator-fixed"; > + regulator-name = "buck-io"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + regulator-boot-on; > + vin-supply = <&vdd>; > + }; > }; > > ðernet0 { > @@ -167,7 +178,7 @@ > > vddcore: buck1 { > regulator-name = "vddcore"; > - regulator-min-microvolt = <1200000>; > + regulator-min-microvolt = <800000>; > regulator-max-microvolt = <1350000>; > regulator-always-on; > regulator-initial-mode = <0>; > @@ -185,8 +196,8 @@ > > vdd: buck3 { > regulator-name = "vdd"; > - regulator-min-microvolt = <3300000>; > - regulator-max-microvolt = <3300000>; > + regulator-min-microvolt = <2900000>; > + regulator-max-microvolt = <2900000>; > regulator-always-on; > st,mask_reset; > regulator-initial-mode = <0>; > @@ -268,6 +279,7 @@ > regulator-name = "vbus_otg"; > interrupts = <IT_OCP_OTG 0>; > interrupt-parent = <&pmic>; > + regulator-active-discharge = <1>; > }; > > vbus_sw: pwr_sw2 { > @@ -304,7 +316,7 @@ > }; > > &pwr_regulators { > - vdd-supply = <&vdd>; > + vdd-supply = <&vdd_io>; > vdd_3v3_usbfs-supply = <&vdd_usb>; > }; >
